SF2188D

Overview

The SF2188D is a general-purpose RF Surface Acoustic Wave (SAW) filter manufactured by RFMi, an Akoustis brand. It operates at a center frequency of 340 MHz with a bandwidth of 8 MHz, covering the range from 336 to 344 MHz. The component features a 50 Ohm impedance and a maximum rated voltage of 3 V. It exhibits an insertion loss of 2 dB and is housed in an SM3838-8 surface-mount package.

Feature Summary

• Surface Acoustic Wave technology for signal conditioning
• General-purpose RF filtering capability
• Compact surface-mount form factor

Applications

• Wireless communication devices
• Internet-connected OEM equipment
• RF signal conditioning modules

Procurement Notes

Verify the manufacturer designation as RFMi, an Akoustis brand, when sourcing components. Confirm the specific package type SM3838-8 matches the design requirements. Ensure the electrical specifications, including the 340 MHz center frequency and 8 MHz bandwidth, align with the target application's frequency plan. Cross-reference the datasheet for detailed mechanical dimensions and reliability standards before finalizing procurement.

Selection Notes

Select this component for applications requiring precise filtering around 340 MHz with low insertion loss. The 50 Ohm impedance ensures compatibility with standard RF transmission lines. Consider the 3 V rating for low-power circuit integration. The small surface-mount package is suitable for space-constrained designs. Evaluate the SAW technology characteristics against alternative filter types based on phase linearity and power handling needs.

Part Context

RFMi specializes in RF components utilizing SAW, crystal, and ceramic technologies for digital and wireless markets. The SF2188D belongs to their SAW filter portfolio, designed to support connectivity and control functions in modern electronic devices. This product line targets OEMs developing next-generation wireless solutions.

FAQ

What is the center frequency of the SF2188D?

The center frequency is 340 MHz.

What packaging style does the SF2188D use?

It uses the SM3838-8 surface-mount package.